The Ancient Persians invented their own alphabet, the wind-power machine and Qantas, a water irrigation system. They also developed their own coinage system.The ancient Persian leaders worked hard to ensure their empire succeeded.
The Persian Empire was important for many reasons. ... The Persians developed their empire in a manner that future empires would emulate. The Persians created a mail system. They built roads and developed a communication system throughout their empire.
They had to divide up the labor and do other tasks
Answer:
Permanent and available at all times
Explanation:
D. the revolutionary leader of Cuba for over four decades
The loyal knights, or the people who serve under them